e367114429
Suppose that you run a command like "pg_combinebackup b1 b2 -o output", but both b1 and b2 contain an INCREMENTAL.$something file in a directory that is expected to contain relation files. This is an error, but the previous code would not detect the problem and instead write a garbage full file named $something to the output directory. This commit adds code to detect the error and a test case to verify the behavior. It's difficult to imagine that this will ever happen unless someone is intentionally trying to break incremental backup, but per discussion, let's consider that the lack of adequate sanity checking in this area is a bug and back-patch to v17, where incremental backup was introduced. Patch by me, reviewed by Bertrand Drouvot and Amul Sul. Discussion: http://postgr.es/m/CA+TgmoaD7dBYPqe7kMtO0dyto7rd0rUh7joh=JPUSaFszKY6Pg@mail.gmail.com
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.